240478 has 16 divisors (see below), whose sum is σ = 419040. Its totient is φ = 101376.

The previous prime is 240473. The next prime is 240479. The reversal of 240478 is 874042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240473) by changing a digit.

240478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 1342.

It is an arithmetic number, because the mean of its divisors is an integer number (26190).

2²⁴⁰⁴⁷⁸ is an apocalyptic number.

240478 is a deficient number, since it is larger than the sum of its proper divisors (178562).

240478 is a wasteful number, since it uses less digits than its factorization.

240478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 240478 is about 490.3855625934. The cubic root of 240478 is about 62.1858799019.

The spelling of 240478 in words is "two hundred forty thousand, four hundred seventy-eight".